WORKPLACE EXPOSURE LIMITS

Transcription

1 Common Name: IODOFORM CAS Number: DOT Number: None HAZARD SUMMARY * Iodoform can affect you when breathed in and by passing through your skin. * Contact can irritate the skin and eyes. * Breathing Iodoform can irritate the nose and throat. * Exposure to high levels can affect the nervous system causing confusion, irritability, headache, hallucinations and/or poor muscle coordination. * Iodoform may cause a skin allergy. If allergy develops, very low future exposure can cause itching and a skin rash. * High exposures may affect the liver and kidneys. IDENTIFICATION Iodoform is a yellowish powder or crystalline (sand-like) solid with an unpleasant odor. It is used as a medication, in making adhesives, and in printing processes. REASON FOR CITATION * Iodoform is on the Hazardous Substance List because it is cited by ACGIH and NIOSH. * Definitions are provided on page 5. HOW TO DETERMINE IF YOU ARE BEING EXPOSED The New Jersey Right to Know Act requires most employers to label chemicals in the workplace and requires public employers to provide their employees with information and training concerning chemical hazards and controls. The federal OSHA Hazard Communication Standard, , requires private employers to provide similar training and information to their employees. RTK Substance number: 1030 Date: January 1997 Revision: May WORKPLACE EXPOSURE LIMITS NIOSH: The recommended airborne exposure limit is 0.6 ppm averaged over a 10-hour workshift. ACGIH: The recommended airborne exposure limit is 0.6 ppm averaged over an 8-hour workshift. * The above exposure limits are for air levels only. When skin contact also occurs, you may be overexposed, even though air levels are less than the limits listed above. WAYS OF REDUCING EXPOSURE * Where possible, enclose operations and use local exhaust ventilation at the site of chemical release. If local exhaust ventilation or enclosure is not used, respirators should be worn. * Wear protective work clothing. * Wash thoroughly immediately after exposure to Iodoform and at the end of the workshift. * Post hazard and warning information in the work area. In addition, as part of an ongoing education and training effort, communicate all information on the health and safety hazards of Iodoform to potentially exposed workers. * Exposure to hazardous substances should be routinely evaluated. This may include collecting personal and area air samples. You can obtain copies of sampling results from your employer. You have a legal right to this information under OSHA * If you think you are experiencing any work-related health problems, see a doctor trained to recognize occupational diseases. Take this Fact Sheet with you.

2 IODOFORM page 2 of 6 This Fact Sheet is a summary source of information of all potential and most severe health hazards that may result from exposure. Duration of exposure, concentration of the substance and other factors will affect your susceptibility to any of the potential effects described below. HEALTH HAZARD INFORMATION Acute Health Effects The following acute (short-term) health effects may occur immediately or shortly after exposure to Iodoform: * Contact can irritate the skin and eyes. * Breathing Iodoform can irritate the nose and throat. * Exposure to high levels can affect the nervous system causing confusion, irritability, headache, hallucinations and/or poor muscle coordination. Chronic Health Effects The following chronic (long-term) health effects can occur at some time after exposure to Iodoform and can last for months or years: Cancer Hazard * There is no evidence that Iodoform causes cancer in animals. This is based on test results presently available to the New Jersey Department of Health and Senior Services from published studies. Reproductive Hazard * According to the information presently available to the New Jersey Department of Health and Senior Services, Iodoform has not been tested for its ability to affect reproduction. Other Long-Term Effects * Iodoform may cause a skin allergy. If allergy develops, very low future exposure can cause itching and a skin rash. * High exposures may affect the liver and kidneys. MEDICAL Medical Testing If symptoms develop or overexposure is suspected, the following are recommended: * Evaluation by a qualified allergist, including careful exposure history and special testing, may help diagnose skin allergy. * Liver and kidney function tests. * Exam of the nervous system. Any evaluation should include a careful history of past and present symptoms with an exam. Medical tests that look for damage already done are not a substitute for controlling exposure. Request copies of your medical testing. You have a legal right to this information under OSHA Mixed Exposures * Because more than light alcohol consumption can cause liver damage, drinking alcohol can increase the liver damage caused by Iodoform. Conditions Made Worse By Exposure * Persons allergic to Iodine may be more likely to develop an allergy to Iodoform. WORKPLACE CONTROLS AND PRACTICES Unless a less toxic chemical can be substituted for a hazardous substance, ENGINEERING CONTROLS are the most effective way of reducing exposure. The best protection is to enclose operations and/or provide local exhaust ventilation at the site of chemical release. Isolating operations can also reduce exposure. Using respirators or protective equipment is less effective than the controls mentioned above, but is sometimes necessary. In evaluating the controls present in your workplace, consider: (1) how hazardous the substance is, (2) how much of the substance is released into the workplace and (3) whether harmful skin or eye contact could occur. Special controls should be in place for highly toxic chemicals or when significant skin, eye, or breathing exposures are possible. In addition, the following control is recommended: * Where possible, automatically transfer Iodoform from drums or other storage containers to process containers. Good WORK PRACTICES can help to reduce hazardous exposures. The following work practices are recommended: * Workers whose clothing has been contaminated by Iodoform should change into clean clothing promptly. * Do not take contaminated work clothes home. Family members could be exposed. * Contaminated work clothes should be laundered by individuals who have been informed of the hazards of exposure to Iodoform. * Eye wash fountains should be provided in the immediate work area for emergency use. * If there is the possibility of skin exposure, emergency shower facilities should be provided. * On skin contact with Iodoform, immediately wash or shower to remove the chemical. At the end of the workshift, wash any areas of the body that may have contacted Iodoform, whether or not known skin contact has occurred. * Do not eat, smoke, or drink where Iodoform is handled, processed, or stored, since the chemical can be swallowed. Wash hands carefully before eating, drinking, applying cosmetics, smoking, or using the toilet. * Use a vacuum or a wet method to reduce dust during cleanup. DO NOT DRY SWEEP.

3 IODOFORM page 3 of 6 PERSONAL PROTECTIVE EQUIPMENT WORKPLACE CONTROLS ARE BETTER THAN PERSONAL PROTECTIVE EQUIPMENT. However, for some jobs (such as outside work, confined space entry, jobs done only once in a while, or jobs done while workplace controls are being installed), personal protective equipment may be appropriate. OSHA requires employers to determine the appropriate personal protective equipment for each hazard and to train employees on how and when to use protective equipment. The following recommendations are only guidelines and may not apply to every situation. Clothing * Avoid skin contact with Iodoform. Wear protective gloves and clothing. Safety equipment suppliers/manufacturers can provide recommendations on the most protective glove/clothing material for your operation. * All protective clothing (suits, gloves, footwear, headgear) should be clean, available each day, and put on before work. Eye Protection * Wear impact resistant eye protection with side shields or goggles. * Wear a face shield along with goggles when working with corrosive, highly irritating or toxic substances. Respiratory Protection IMPROPER USE OF RESPIRATORS IS DANGEROUS. Such equipment should only be used if the employer has a written program that takes into account workplace conditions, requirements for worker training, respirator fit testing and medical exams, as described in OSHA * NIOSH has established new testing and certification requirements for negative pressure, air purifying, particulate filter and filtering facepiece respirators. The filter classifications of dust/mist/fume, paint spray or pesticide prefilters, and filters for radon daughters, have been replaced with the N, R, and P series. Each series has three levels of filtering efficiency: 95%, 99%, and 99.9%. Check with your safety equipment supplier or your respirator manufacturer to determine which respirator is appropriate for your facility. * If while wearing a filter or cartridge respirator you can smell, taste, or otherwise detect Iodoform, or if while wearing particulate filters abnormal resistance to breathing is experienced, or eye irritation occurs while wearing a full facepiece respirator, leave the area immediately. Check to make sure the respirator-to-face seal is still good. If it is, replace the filter or cartridge. If the seal is no longer good, you may need a new respirator. * Be sure to consider all potential exposures in your workplace. You may need a combination of filters, prefilters or cartridges to protect against different forms of a chemical (such as vapor and mist) or against a mixture of chemicals. * Where the potential for high exposure exists, use a NIOSH approved supplied-air respirator with a full facepiece operated in a pressure-demand or other positive-pressure mode. For increased protection use in combination with an auxiliary self-contained breathing apparatus operated in a pressure-demand or other positive-pressure mode. QUESTIONS AND ANSWERS Q: If I have acute health effects, will I later get chronic health effects? A: Not always. Most chronic (long-term) effects result from repeated exposures to a chemical. Q: Can I get long-term effects without ever having shortterm effects? A: Yes, because long-term effects can occur from repeated exposures to a chemical at levels not high enough to make you immediately sick. Q: What are my chances of getting sick when I have been exposed to chemicals? A: The likelihood of becoming sick from chemicals is increased as the amount of exposure increases. This is determined by the length of time and the amount of material to which someone is exposed. Q: When are higher exposures more likely? A: Conditions which increase risk of exposure include dust releasing operations (grinding, mixing, blasting, dumping, etc.), other physical and mechanical processes (heating, pouring, spraying, spills and evaporation from large surface areas such as open containers), and "confined space" exposures (working inside vats, reactors, boilers, small rooms, etc.). Q: Is the risk of getting sick higher for workers than for community residents? A: Yes. Exposures in the community, except possibly in cases of fires or spills, are usually much lower than those found in the workplace. However, people in the community may be exposed to contaminated water as well as to chemicals in the air over long periods. This may be a problem for children or people who are already ill.

4 IODOFORM page 4 of The following information is available from: New Jersey Department of Health and Senior Services Occupational Health Service PO Box 360 Trenton, NJ (609) (609) (fax) Web address: Industrial Hygiene Information Industrial hygienists are available to answer your questions regarding the control of chemical exposures using exhaust ventilation, special work practices, good housekeeping, good hygiene practices, and personal protective equipment including respirators. In addition, they can help to interpret the results of industrial hygiene survey data. Medical Evaluation If you think you are becoming sick because of exposure to chemicals at your workplace, you may call personnel at the Department of Health and Senior Services, Occupational Health Service, who can help you find the information you need. Public Presentations Presentations and educational programs on occupational health or the Right to Know Act can be organized for labor unions, trade associations and other groups. Right to Know Information Resources The Right to Know Infoline (609) can answer questions about the identity and potential health effects of chemicals, list of educational materials in occupational health, references used to prepare the Fact Sheets, preparation of the Right to Know Survey, education and training programs, labeling requirements, and general information regarding the Right to Know Act. Violations of the law should be reported to (609)

5 IODOFORM page 5 of 6 DEFINITIONS ACGIH is the American Conference of Governmental Industrial Hygienists. It recommends upper limits (called TLVs) for exposure to workplace chemicals. A carcinogen is a substance that causes cancer. The CAS number is assigned by the Chemical Abstracts Service to identify a specific chemical. A combustible substance is a solid, liquid or gas that will burn. A corrosive substance is a gas, liquid or solid that causes irreversible damage to human tissue or containers. DEP is the New Jersey Department of Environmental Protection. DOT is the Department of Transportation, the federal agency that regulates the transportation of chemicals. EPA is the Environmental Protection Agency, the federal agency responsible for regulating environmental hazards. A fetus is an unborn human or animal. A flammable substance is a solid, liquid, vapor or gas that will ignite easily and burn rapidly. The flash point is the temperature at which a liquid or solid gives off vapor that can form a flammable mixture with air. HHAG is the Human Health Assessment Group of the federal EPA. IARC is the International Agency for Research on Cancer, a scientific group that classifies chemicals according to their cancer-causing potential. A miscible substance is a liquid or gas that will evenly dissolve in another. mg/m 3 means milligrams of a chemical in a cubic meter of air. It is a measure of concentration (weight/volume). A mutagen is a substance that causes mutations. A mutation is a change in the genetic material in a body cell. Mutations can lead to birth defects, miscarriages, or cancer. NAERG is the North American Emergency Response Guidebook. It was jointly developed by Transport Canada, the United States Department of Transportation and the Secretariat of Communications and Transportation of Mexico. It is a guide for first responders to quickly identify the specific or generic hazards of material involved in a transportation incident, and to protect themselves and the general public during the initial response phase of the incident. NCI is the National Cancer Institute, a federal agency that determines the cancer-causing potential of chemicals. NFPA is the National Fire Protection Association. It classifies substances according to their fire and explosion hazard. NIOSH is the National Institute for Occupational Safety and Health. It tests equipment, evaluates and approves respirators, conducts studies of workplace hazards, and proposes standards to OSHA. NTP is the National Toxicology Program which tests chemicals and reviews evidence for cancer. OSHA is the Occupational Safety and Health Administration, which adopts and enforces health and safety standards. PEL is the Permissible Exposure Limit which is enforceable by the Occupational Safety and Health Administration. PIH is a DOT designation for chemicals which are Poison Inhalation Hazards. ppm means parts of a substance per million parts of air. It is a measure of concentration by volume in air. A reactive substance is a solid, liquid or gas that releases energy under certain conditions. A teratogen is a substance that causes birth defects by damaging the fetus. TLV is the Threshold Limit Value, the workplace exposure limit recommended by ACGIH. The vapor pressure is a measure of how readily a liquid or a solid mixes with air at its surface. A higher vapor pressure indicates a higher concentration of the substance in air and therefore increases the likelihood of breathing it in.

6 page 6 of 6 >>>>>>>>>>>>>>>>> E M E R G E N C Y I N F O R M A T I O N <<<<<<<<<<<<<<<<< Common Name: IODOFORM DOT Number: None NAERG Code: No Citation CAS Number: Hazard rating NJDHSS NFPA FLAMMABILITY Not Found Not Rated REACTIVITY Not Found Not Rated POISONOUS GASES ARE PRODUCED IN FIRE Hazard Rating Key: 0=minimal; 1=slight; 2=moderate; 3=serious; 4=severe FIRE HAZARDS * Extinguish fire using an agent suitable for type of surrounding fire. Iodoform itself does not burn. * POISONOUS GASES ARE PRODUCED IN FIRE, including Hydrogen Iodide. * If employees are expected to fight fires, they must be trained and equipped as stated in OSHA SPILLS AND EMERGENCIES If Iodoform is spilled, take the following steps: * Evacuate persons not wearing protective equipment from area of spill until clean-up is complete. * Collect powdered material in the most convenient and safe manner and deposit in sealed containers. * Ventilate and wash area after clean-up is complete. * It may be necessary to contain and dispose of Iodoform as a HAZARDOUS WASTE. Contact your state Department of Environmental Protection (DEP) or your regional office of the federal Environmental Protection Agency (EPA) for specific recommendations. * If employees are required to clean-up spills, they must be properly trained and equipped. OSHA (q) may be applicable. ============================================ FOR LARGE SPILLS AND FIRES immediately call your fire department. You can request emergency information from the following: CHEMTREC: (800) NJDEP HOTLINE: WARN-DEP ============================================ HANDLING AND STORAGE * Prior to working with Iodoform you should be trained on its proper handling and storage. * Iodoform must be stored to avoid contact with ALKALI METALS (such as MERCURIC OXIDE, SILVER NITRATE, and LITHIUM). * Iodoform is not compatible with STRONG BASES (such as SODIUM HYDROXIDE and POTASSIUM HYDROXIDE); OXIDIZING AGENTS (such as PERCHLORATES, PEROXIDES, PERMANGANATES, CHLORATES, NITRATES, CHLORINE, BROMINE and FLUORINE); MAGNESIUM; ACETONE; CALOMEL; and TANNIN. * Store in tightly closed containers in a cool, well-ventilated area away from HEAT as Iodoform decomposes violently above 400 o F (204 o C). FIRST AID For POISON INFORMATION call Eye Contact * Immediately flush with large amounts of water for at least 15 minutes, occasionally lifting upper and lower lids. Skin Contact * Quickly remove contaminated clothing. Immediately wash contaminated skin with large amounts of soap and water. Breathing * Remove the person from exposure. * Begin rescue breathing (using universal precautions) if breathing has stopped and CPR if heart action has stopped. * Transfer promptly to a medical facility. PHYSICAL DATA Water Solubility: Insoluble OTHER COMMONLY USED NAMES Chemical Name: Methane, Triiodo- Other Names: Triiodomethane Not intended to be copied and sold for commercial purposes. NEW JERSEY DEPARTMENT OF HEALTH AND SENIOR SERVICES Right to Know Program PO Box 368, Trenton, NJ (609)

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